Hyundai IONIQ, AE (USA)

Brake fluid capacity & service interval

Hyundai IONIQ, AE (USA) brake fluid capacity is 0,7-0,8 liter. Service intervals include checking at 15000 miles or 12 months and changing at 30000 miles or 24 months. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
IONIQ Electric (2019-2022)
  • Use: Normal
  • Capacity 0,7-0,8 liter
  • Check 15000 miles/ 12 months
IONIQ Electric (2017-2019)
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
IONIQ Hybrid 1.6 GDI (2017-2022)
  • Use: Normal
  • Capacity 0,7-0,8 liter
  • Change 30000 miles/ 24 months
IONIQ Plug-in Hybrid 1.6 GDI (2017-2022)
  • Use: Normal
  • Capacity 0,7-0,8 liter
  • Change 30000 miles/ 24 months

Additional Notes

  • The Hyundai IONIQ AE (USA) brake fluid capacity for the hydraulic brake system is specified as a range of 0.7-0.8 liter across the IONIQ Electric (2019-2022), IONIQ Hybrid 1.6 GDI, and IONIQ Plug-in Hybrid 1.6 GDI configurations. A range rather than a fixed value reflects normal variation in reservoir fill levels between the minimum and maximum marks.
  • The IONIQ Electric covering model years 2017-2019 carries no numeric capacity figure in the specifications. Instead, the fill level is described only as "between min and max," meaning the reservoir markings on the brake fluid reservoir itself serve as the sole fill reference for that configuration.
  • The IONIQ Electric (2017-2019) and IONIQ Electric (2019-2022) share the same service interval of a check every 15,000 miles or 12 months under normal use conditions. A check interval, rather than a change interval, means the fluid level and condition are inspected but full replacement is not necessarily scheduled at that point.
  • The IONIQ Hybrid 1.6 GDI (2017-2022) and IONIQ Plug-in Hybrid 1.6 GDI (2017-2022) are both specified for a brake fluid change every 30,000 miles or 24 months under normal use conditions. A change interval indicates full fluid replacement rather than a simple level inspection.
  • The service interval for the electric variants is set at half the mileage and half the time of the hybrid and plug-in hybrid variants, with the electric models calling for a check at 15,000 miles or 12 months versus a change at 30,000 miles or 24 months for the 1.6 GDI-based models.
  • All four configurations across the 2017-2022 model years are designated under normal use conditions, meaning none of the specifications reference a severe-use interval for the brake fluid system.

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